Paper-feed mechanism.



G. B. MAEGLY. PAPER FEED MECHANISM. APPLICATION FILED FEB. 24, 1008.

PatentedNbv. 3, i908.

FHQE.

GEORGE B. .MAEGLY, OF KANSAS CITY, MISSOURI.

PAPER-FEED MECHANISM.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed February 24, 1908. Serial. No. 417,330.

[ all whom it may concern..-

Be it known that I, Gnouon B. M \EGLY, a citizen of the United States,residing at Kansas City, iuthe county of Jackson and State of Missouri,have invented certain new and useful Improvements in Pt1P81FGCClMechanism, of which the following is a specification.

This inventionrelates to paper feed mechanism, and more especially tomechanism for successively removing sheets of paper from a stack andadvancing them one by one to the point desired, my object being toproduce a mechanism of this character which operates efiiciently andreliably and which is of simple, strong, durable, compact andinexpensive construction.

To this end the invention consists of certain novel and peculiarfeatures of construction and organization as hereinafter described andclaimed; and in order that it may be fully understood, reference is tobe had to which- Figure 1, is a vertical section taken on the line II ofFig. 2. Fig. 2. is a top plan view of the same. Fig. 3 is a verticasection on the line IIIIII of'Fig. 9, but with the friction rolleroccupying its inoperative position.

In the said drawing. 1 indicates a suitable paper receptacle containinga stack of sheets 2, pressed upward-by a follower 3, the follower inpractice. exerting a yielding pressure bv preference though not soshown, as it is of common and well known construction in paper feedingmechanisms.

Super-posed upon the sides of this receptacle is a stationary frameconsisting of two similar sides at and bridging the rear end of thereceptacle and extending transversely thereof and journaled in thestationary frame is an idler roller 5, for the purpose of preventing thecomplete upward ejectment of the sheets of paper from the rear end ofthe receptacle, a roller being employed for this purpose to eliminatefriction in the advance movement of each sheet.

(3 indicates a thin bed-plate for frame 4. overlapping the front end ofthe stack of paper to limit the upward movement of the same at such end.T is an arch frame rising from the sides 4 of the stationary frame atthe rear end of the bed-plate. and rearward of said bed-plate andbetween the sides or legs of the said frame, the latter is provided theaccmnpanying drawing in with depending arms 7 having vertical slots 8wherein fit siidingly the boxes 9 in which is journaled a transverseshaft 10 incapable of endwise movement because of the sleeve 10 securedupon it snugly between said arms 7 Secured upon the ends of shaft 10 isa roller consisting by preference of two similar sections. 11 eachequipped peripherally with a tread or friction surface 12 of rubber orequivalent material, springs 13 occupying slots 8 and interposed betweenthe boxes 9 and the underlying ends of the slots 8, normally holding theroller yieldingly elevated above the plane of the stack of paper asshown in Fig. 3.

Forward of and above shaft 10, and journaled in the sides or legs ofarch-frame 7, is a shaft 14., adapted to be continuously driven by abelt, or its equivalent, not shown, engaging pulley 15, secured to oneend of said. shaft, and secured upon said shaft between the standards 7is a' cam, which, like the roller, preferably consists of two sections16, provided with concentric rubber or equivalent tired portions 17, thecam sections being adapted once in each revolution to engage and depressand incidentallyturn the roller sections, the depression-actioncontinuing until the latter engage the topmost sheet of the stack ofpaper, when the concentric portions of the cam sections more positivelyeffect rotation of said roller sec.- tions in the direction indicated bythe con tiguous arrow Fig. 1, for the purpose of drawing the frontportion of the topmost sheet of paper rearward from under theoverlappingend of the bed-plate, the sheet between the friction roller11, and roller 5,

buckling or bowing upward substantially as shown in dotted lines, Fig.1.

Secured rigidly on the shaft 14, are one or more ru her-tired segmentspreferably one at the outer side of each section,.and

each segment by preference consists of two sections fitting adjustablytogether for the purpose of varying the length of the segment. As shown,each segment consists of a section 18, and a section 19, the formerbeing equipped with a clamping bolt 20 extending through a slot 21 insection'19, the said slot being preferably enlarged at its innerside at22 to receive the head of the bolt andthe washer 23 'mounted on thebolt. The segments are preferably arranged upon the shaft with theirfront ends occupymg a radial plane rearward of one of the rear endslapat its front end, the rear end of bedplate 6. Immediately, after'thisaction occurs, the front end-of the segments come into engagement withsaid overlapping front end of the sheet as shownjin Fig. 3,. and forcesaid sheet forward upon the bed-plate a distance equal to the length ofthe segment, after which, its advance may be continued by any suitablemechanism.- As

"shown, the len th of the segment peripher-H ally measured, is less thanthat of the sheet. In practice it wouldhave to be about equal to thelength of the sheet, orthe advance of-the latter would have tobecontinued by 7 other means in order to draw it out of the way ofthefollowing sheet, as will be read ily understood.

From'the above desori tion it will be ap-r parent that I have pro need apaper feed mechanism possessing the features of ad vantage enumerated asdesirable and I wish it to be understood that I do not desireto be 1restricted to the exact details of con struction shown and described, asobvious modifications will suggest themselvesto one skilled in the art.I

Having thus described the invention, What I claim as new and desire tosecure by Letters-Patent, is i 1. A paper feed mechanism, comprising areceptacle for-a stack of sheets of paper, a bedsplate overla ping thefront end of said stack, a feed rol or near the rearend of thebed-plate,and a driven shaft provided with a dam to engage and forcesaid roller against the paper and a tread surface to impart rotation tosaid roller to cause the same to withdraw the front end of the engagedsheet from below the overlapping end of the bedplate.

' 2. A paper feed mechanism, comprising a receptacle for a stack ofsheets of paper, a bed-plate overla oping the front end of said stack, afeed roller near the rear end of the bed-plate,-a driven shaft providedwith a cam to engage and force said roller against the paper, and atread portion to impart. rotation to saidroller to cause the same towithdraw the front end of the engaged sheet from below the overlappingend of the bed plate, and. means to withdraw said feed roller fromengagement with the paper as its rotative action ends.

3. A paper feed mechanism, comprising a receptacle for a stack of sheetsof a er, a bed-plate overlapping the front en of said stack, a feedroller near the rear end of the I eoaibi bed plate, 'a driven shaftprovided with a cam to engage and force said roller against the paperand a tread portion to impart rotation tosaid roller to cause the sameto with draw the front end of the engaged sheet from below theoverlapping end of the bedplate, means holding therear end of the stackof paper substantially immovable to cause the sheet engaged by saidroller to buckle upward, and means to withdraw said roller fromengagement with the paper as its rotative action ends to permit thebuckled sheet to overlap at its front end, the rear end of thebed-plate. p

4. A paper feed mechanism, comprising a receptacle for a stack of sheetsof paper, a

bed-plate overlapping the front end of said stack, a feed roller nearthe rear end of the bed-plate, a driven shaft provided with a cam toengage and force said roller against the paper and a tread portion toimpart r0- tation to said roller to cause the same to withdraw the frontend ofthe engaged sheet from below the overlapping end of the bedplate,means holding the rear end of the stackof paper substantially immovableto acause' the sheet engaged by said roller to buckle upward, means toWithdraw said roller from engagement with the paper as its rotativeaction ends to permit the buckled sheet to overlapat its front end, therear end of the bed-plate, and means to engage the sheet overlapping thebed-plate, and move it forwardly upon the latter,

5. A paper feed mechanism, comprising a receptacle for a stack of sheetsof paper, a

bed-plate overlapping the front end of the stack, a feed roller near therear end of the bed-plate, a driven shaft provided with a cam to engageand force said roller against the paper and provided with a treadportion to impart rotation to said roller to cause thesame to withdrawthe frontend of the engaged sheet from below the over lapping end of thebed-plate, means holding the rear end of the stack of papersubstantially in'unovable to cause the sheet engaged by said roller tobuckle upward, means to withdraw said roller from engagement with thepaper as its rotative action ends to permit the buckled sheet to overlapat its front end, the rear end of the bed-plate, and a rotating segmentto engage the sheet overlapping the bed late and feed said sheetforwardly upon t 1e latter.

6. A paper feed mechanism, comprising a receptacle for a' stack ofsheets of paper, a bed-plate overlapping the front end of the stack, afeed roller near the rear end of the bed-plate, a driven shaft providedwith a cum to engage and force said roller against the paper andprovided Wlllll. a tread portion to impart rotation to said rollertocause the same to withdraw, the front end of the engaged sheet frombelow the overlapping end of the bed-plate, means holding the rear endof the stack of paper substantially immovable to cause the sheet engagedby said roller to buckle upward, means to withdraw said roller fromengagement with the paper as its rotative action ends to per mit thebuckled sheet to overlap at its front end the rear end of the bed-plate,and a rotating extensible segment to engage the sheet overlapping thebed-plate and feed said sheet forwardly'upon the latter.

- 7. The combination with a receptacle open at its upper end andcontaining a stack of paper, a bed-plate overlapping the front end ofthe stack, a follower to press the stack of paper up against said rollerand bed-plate, a feed roller near the rear end of the bed-plate, adriven shaft provided with a cam'to engage and force said feed rolleragainst the paper and provided with a tread portion to impart rotationto said feed roller to cause the same to withdraw the front end of theengaged sheet from below the overlapping end of the bed-plate, meansholding the rear end of the stack of paper substantially immovable tocause the sheet engaged by said feed roller to, buckle upward, means towithdraw the feed roller from engagement with the paper as its rotativeaction ends to permit the buckled sheet to overlap at its front end therear end of the bed-plate, and means to engage the sheet overlapping thebed-plate and move it forwardly upon the latter.

In testimony whereof I afiix my signature,

in the presence of two witnesses.

GEORGE B. MAEGLY. Vi tnesses H. C. RODGERS, G. Y. THonPn.

